Can we add this to an existing reef with slightly elevated ammonia?

If by existing you mean live stock in it? Yes, and if you mean no stock but ammonia, yes again. You might be better off doing a water change if you have life in tank though. If you dose this you will have to monitor nitrite and nitrate cycles.

Im new...will this kill off my invert food sources or hurt them in any way?

It will not kill your invert food source. It’s bacteria that’s beneficial to your aquarium

Noob question how much of this do I use on a 32 gallon biocube? It’s a new tank I can’t find any measuring cups for ML anywhere n my town

Once your tank has been fed regularly for a few days either with out without fish to start the bacterial cycle, add half during the first week and the other half during the 2nd. Add a small amount after water changes is also a good idea for upkeep. Buy 2 bottles.

how long did it take for this product to bring down nitrite levels?

I wouldn't use this product as a means of nitrite reduction. Live rock will do a much better job of that. I use this product as a means of adding biodiversity to my tank. It did nothing for nitrate levels.

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Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 500 ml

Brightwell Aquatics MicroBacter7 Biological Filter Bioculture Aid, 500 ml

Product ID: 7737163

Details

Brand
Brightwell
Item Form
Liquid
Item Weight
1 Pounds
Liquid Volume
500
Number of Packs
1

💧rapid reduction of ammonia & nitrates

🦠500ml advanced microbial formula

🇺🇸premium American-made quality

฿2618

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Description

🦠 Elevate your aquarium’s ecosystem with science-backed clarity and care!

MICROBIAL MASTERY - Harness a complex blend of aerobic & anaerobic bacteria for superior biological filtration.
CRYSTAL CLEAR CLARITY - Rapidly reduces ammonia, nitrite, nitrate, phosphate, and organic carbon for pristine water quality.
DUAL ECOSYSTEM SUPPORT - Optimized for both marine and freshwater aquariums, ensuring versatile aquatic health.
TRUSTED AMERICAN EXCELLENCE - Scientifically backed, veterinarian recommended, and proudly made in the USA for unmatched reliability.
WASTE BREAKDOWN ACCELERATOR - Speeds up organic waste degradation to maintain a balanced, thriving tank environment.

Brightwell Aquatics MicroBacter7 is a 500ml liquid bioculture aid featuring a sophisticated blend of aerobic and anaerobic microbes plus natural enzymes. Designed to enhance biological filtration, it accelerates nitrification, denitrification, and organic waste breakdown in both freshwater and marine tanks. This American-made formula rapidly reduces harmful compounds like ammonia, nitrites, nitrates, phosphates, and hydrogen sulfide, promoting crystal-clear water and a healthier aquatic environment. Trusted by veterinarians and aquarium pros alike, MicroBacter7 is the go-to solution for maintaining vibrant, balanced aquariums.

Specifications

ASIN	B001DKSG9S
ASIN	B001DKSG9S
Allergen Information	Sulphites Free
Best Sellers Rank	#6,928 in Pet Supplies ( See Top 100 in Pet Supplies ) #54 in Aquarium Water Treatments
Brand Name	Brightwell Aquatics
Customer Reviews	4.7 4.7 out of 5 stars (3,478)
Date First Available	June 24, 2004
Global Trade Identification Number	00810086012206
Included Components	MicroBacter7
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Type Name	Aquarium Bacteria
Item Weight	1 Pounds
Item model number	BAC500
Liquid Volume	500 Milliliters
Manufacturer	Brightwell Aquatics
Manufacturer	Brightwell Aquatics
Manufacturer Part Number	BAC500
Model Number	BAC500
Pet Type	Fish
Product Dimensions	2.5 x 2.5 x 6.75 inches; 1 Pounds
Target Species	Fish
UPC	611102132522 810086012206 787461534205
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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฿2618

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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